河北杏树台矿床中的硫铋锑镍矿和派克矿

HAUCHECORNITE (Ni_9Bi_2S_8) AND PARKERITE (Ni_3Bi_2S_2) IN THE XINGSHUTAI DEPOSIT, HEBEI PROVINCE

硫铋锑镍矿和派克矿与五元素矿化有关,产于富含砷镍矿和红砷镍矿的脉状矿石中,并形成特征的硫铋锑镍矿-派克矿共生组合。根据矿石组构、矿物共生组合和类质同象系列的研究,杏树台硫铋锑镍矿和派克矿属于中低温热液矿物,并形成于含矿溶液由富Ni向富Bi演变的成矿作用过程。它们晶出于砷镍矿,红砷矿之后,辉铋矿、自然铋之先。 硫铋锑镍矿在我国属首次发现。硫铋锑镍矿-派克矿共生组合在国外有关文献中尚无报道。笔者在研究杏树台五元素建造的基础上指出,硫铋锑镍矿-派克矿共生是Bi,Ni硫化物的一种极为特征的产出形式,并认为,类似的矿物共生也应见于世界其他地区。

The minerals hauchecornite and parkerite are found occurring in the maucherite-and niccolite-rich veins. In terms of ore fabric, mineral paragenesis and isomorphous series, the two minerals from the Xingshutai deposit are typical moderate-low temperature minerals. They were formed from ore-forming solutions in the process of evolution of the solutions from Ni-enrichment to Bi-enrichment. Their formation predated bismuthinite and natlve bismuth but postdated maucherite and niccoliteThe hauchecornite has been discovered for the first time in China and there has been no report on the hauchecornite-parkerite paragenesis in literature. The data available from the Xingshutai deposit indicate that the ha- uchecornite-parkerite paragenesis reflects a peculiar association of sulfides of Bi and Ni and such kind of paragenesis should also be observed in ore deposits elsewhere throughout the world.